... cellsglicentin IP2GLP-1 GLP -2 3 3-6 1Figure 2 Cell-specific posttranslational processing of preproglucagon. GRPP, Glicentin-relatedpancreatic peptide; GLP-1, glucagon-like peptide 1; GLP -2 , glucagon-like ... fructose-1,6-bisphosphate, is formed from fructose-6-phosphate by the action of an unusualbifunctional enzyme that catalyzes either phosphorylation of fructose-6-phosphateto fructose -2 , 6-bisphosphate ... interleukins (IL-1through IL-18), tumor necrosis factor (TNF), the interferons (IFN-α ,- , and - ),colony-stimulating factor (CSF), granulocyte/macrophage colony-stimulating fac-tor (GM-CSF), transforming...